Home / 830,434.35-1,145,999.40-448,461.11

Finding the Fourth Proportional to 830,434.35, 1,145,999.40 and 448,461.11

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Solution

The fourth proportional to 830,434.35, 1,145,999.40 and 448,461.11 is: 618,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,434.35 : 1,145,999.40 = 448,461.11 : x
  2. Step 2: Convert to fraction form
    830,434.35/1,145,999.40 = 448,461.11/x
  3. Step 3: Cross multiply
    830,434.35x = 1,145,999.40 × 448,461.11
  4. Step 4: Simplify right side
    830,434.35x = 513,936,157,253.34
  5. Step 5: Solve for x
    x = 513,936,157,253.34/830,434.35
  6. Step 6: Final answer
    x = 618,876.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.